Taylor Swift [1] couldn't help but be moved during the American Music Awards on Sunday night when two of her best friends — Lorde [2] and Selena Gomez [3] — both gave intense performances during the show. Taylor could be seen rocking out alongside her other best pal, Karlie Kloss, while Lorde sang "Yellow Flicker Beat" [4] and was later moved to tears during Selena's performance of "The Heart Wants What It Wants," [5] which is about Selena's tumultuous relationship with Justin Bieber (a guy that Taylor may not be the biggest fan of [6]). Keep reading to see Taylor's best audience moments during the AMAs, and be sure to check out her many faces during her own performance of "Blank Space" [7] at the beginning of the show.

Front Page ; Source: ABC [8]

When She Acted Like a Teen Girl Rocking Out to Lorde

When She Had a Fangirl Moment

When She Cried After Selena's Performance

When She Tried to Get Sexy With Jessie J

When She Was Like, "OMG, I Was Just Dancing With Jessie J!"

Bonus: When Lorde Joined Taylor's Dance Party